diff --git a/example/sz.config b/example/sz.config
index aca4b08f..0fd9977d 100644
--- a/example/sz.config
+++ b/example/sz.config
@@ -113,4 +113,4 @@ pw_relBoundRatio = 1E-2
 
 #superfast compression mode for point-wise relative error bound
 #1 (yes) or 0 (no)
-accelerate_pw_rel_compression = 0
+accelerate_pw_rel_compression = 1